On 6.12.20 г. 10:56 ч., Yun Levi wrote: >> This, and the change above this, are not related to this patch so you >> might not want to include them. > >> Also, why is this patch series even needed? I don't see a justification >> for it anywhere, only "what" this patch is, not "why". > > I think the find_last_zero_bit will help to improve in > 7th patch's change and It can be used in the future. > But if my thinking is bad.. Please let me know.. > > Thanks. > Levi. > btrfs' free space cache v1 is going to be removed some time in the future so introducing kernel-wide change just for its own sake is a bit premature. Also do you have measurements showing it indeed improves performances?
